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Cheap flights from Billings (BIL) to Seattle (BFI)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Billings (BIL) to Seattle (BFI)

How to find the cheapest flight from Billings (BIL) to Seattle (BFI)
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How to find the cheapest flight from Billings (BIL) to Seattle (BFI)
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How to find the cheapest flight from Billings (BIL) to Seattle (BFI)
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Cheap flights from Billings to Seattle in December 2025 , January 2026

20 Dec - 19 Jan $ 956.00
BIL
Billings
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
BIL
Billings
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22 Dec - 19 Jan $ 966.00
BIL
Billings
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
BIL
Billings
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20 Dec - 05 Jan $ 1,032.00
BIL
Billings
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
BIL
Billings
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Last minute flights from Billings to Seattle

20 Dec - 02 Jan $ 1,136.00
BIL
Billings
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
3 STOPS
BIL
Billings
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20 Dec - 02 Jan $ 1,146.00
BIL
Billings
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
BIL
Billings
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22 Dec - 02 Jan $ 1,152.00
BIL
Billings
Allegiant Air
2 STOPS
BFI
Seattle
BFI
Seattle
Allegiant Air
2 STOPS
BIL
Billings
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One-way flights to Seattle from Billings

5:28 PM - 5:45 PM
Air Excursions
2 Stops
26h 7m
BIL - BFI
$ 539
Kiwi
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10:02 AM - 4:05 PM
Air Excursions
2 Stops
31h 53m
BIL - BFI
$ 556
Kiwi
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3:27 PM - 6:45 PM
Air Excursions
1 Stops
5h 8m
BIL - BFI
$ 695
Kiwi
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How to find the cheapest flight from Billings (BIL) to Seattle (BFI)

Related info for your journey
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How to find the cheapest flight from Billings (BIL) to Seattle (BFI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Billings (BIL) to Seattle (BFI)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.